"periodic sampling" is correct and usable in written English.
You can use it when referring to the practice of regularly taking measurements or observations over time. For example, "We must ensure that periodic sampling of the lake is taking place to track water quality over time."
Silver nitrate was added and reaction was allowed to proceed in dark for specific period of time with periodic sampling.
The study comprised a weekly health questionnaire answered by both graywater users and non-graywater users (control group) regarding their health status over a period of 1 year, and periodic sampling for graywater quality.
In the mean time, the colour change of the mixture from faint light to yellowish brown to reddish brown to colloidal brown was monitored periodically (time and colour change were recorded along with periodic sampling and scanning by UV-visible spectrophotometry) for maximum 30 min. This was separately performed with each type of plant extract.
Balloons and rockets can do periodic sampling, but they are hard to control, and aircraft that operate this high can do so for only a few hours and move so fast that they disturb the air they are sampling.
Several large migratory operations have undergone periodic sampling for possible early warning signs of colony health issues that could trigger or lead to CCD.
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